2021

  1. ICD-10-CM Codes
    2. ›
  2. R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    3. ›
  3. R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior
    4. ›
  4. R45- Symptoms and signs involving emotional state
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code R45.1

2021 ICD-10-CM Diagnosis Code R45.1

Restlessness and agitation

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • R45.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM R45.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of R45.1 - other international versions of ICD-10 R45.1 may differ.
The following code(s) above R45.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to R45.1:
  • R00-R99
    2021 ICD-10-CM Range R00-R99

    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

    Note
    • This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
    • Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
    • The conditions and signs or symptoms included in categories R00-R94 consist of:
    • (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
    • (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
    • (c) provisional diagnosis in a patient who failed to return for further investigation or care;
    • (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
    • (e) cases in which a more precise diagnosis was not available for any other reason;
    • (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
    Type 2 Excludes
    • abnormal findings on antenatal screening of mother (O28.-)
    • certain conditions originating in the perinatal period (P04-P96)
    • signs and symptoms classified in the body system chapters
    • signs and symptoms of breast (N63, N64.5)
    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
  • R40-R46
    2021 ICD-10-CM Range R40-R46

    Symptoms and signs involving cognition, perception, emotional state and behavior

    Type 2 Excludes
    • symptoms and signs constituting part of a pattern of mental disorder (F01-F99)
    Symptoms and signs involving cognition, perception, emotional state and behavior
Approximate Synonyms
  • Agitation
  • Feeling agitated
ICD-10-CM R45.1 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 884 Organic disturbances and intellectual disability

Convert R45.1 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to R45.1:
  • Agitation R45.1
  • Restlessness R45.1
  • State (of)

ICD-10-CM Codes Adjacent To R45.1
R43.9 Unspecified disturbances of smell and taste
R44 Other symptoms and signs involving general sensations and perceptions
R44.0 Auditory hallucinations
R44.1 Visual hallucinations
R44.2 Other hallucinations
R44.3 Hallucinations, unspecified
R44.8 Other symptoms and signs involving general sensations and perceptions
R44.9 Unspecified symptoms and signs involving general sensations and perceptions
R45 Symptoms and signs involving emotional state
R45.0 Nervousness
R45.1 Restlessness and agitation
R45.2 Unhappiness
R45.3 Demoralization and apathy
R45.4 Irritability and anger
R45.5 Hostility
R45.6 Violent behavior
R45.7 State of emotional shock and stress, unspecified
R45.8 Other symptoms and signs involving emotional state
R45.81 Low self-esteem
R45.82 Worries
R45.83 Excessive crying of child, adolescent or adult

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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